What is the cleanest lake in Morgan County, Illinois?

Meredosia Lake in Morgan County has the cleanest nutrient and algae readings in Morgan County, Illinois.

How are these rankings calculated?

Nutrients and algae, total phosphorus, nitrogen, chlorophyll-a and turbidity, are read against EPA National Lakes Assessment 2022 condition classes for that lake’s ecoregion. Water clarity (Secchi depth) is measured and shown separately. Lakes without enough recent samples are listed without a condition class rather than ranked low. Source data comes from the EPA Water Quality Portal.

Cleanest Lakes in Morgan County, Illinois

Meredosia Lake in Morgan County leads the rankings on measured clarity and nutrients. Below are the top 3 cleanest monitored lakes in Morgan County, Illinois, ranked on EPA nutrient and algae measurements.

Ranked List

#	Lake	County	Clarity	Phosphorus	Algae
1	Meredosia Lake	Morgan	-	-	-
2	Lake Jacksonville	Morgan	-	-	-
3	Waverly City Lake	Morgan	-	-	-

Ranked List

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